CN200977907Y - Automobile electromagnetic braking device - Google Patents
Automobile electromagnetic braking device Download PDFInfo
- Publication number
- CN200977907Y CN200977907Y CN 200520131832 CN200520131832U CN200977907Y CN 200977907 Y CN200977907 Y CN 200977907Y CN 200520131832 CN200520131832 CN 200520131832 CN 200520131832 U CN200520131832 U CN 200520131832U CN 200977907 Y CN200977907 Y CN 200977907Y
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- screw actuator
- vehicle
- cuboid
- solenoid
- circuit
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Abstract
The utility model relates to a vehicle electromagnetic brake device, belonging to the automobile industry and transportation system fields. The utility model comprises a vehicle-mounted double-layer solenoid electromagnetic device and a cuboid solenoid electromagnetic device under the road. The vehicle-mounted double-layer solenoid electromagnetic device comprises an inner-layer solenoid and the circuit of the inner-layer solenoid, an outer-layer solenoid and the circuit of the outer-layer solenoid. The cuboid solenoid electromagnetic device comprises a cuboid solenoid and the circuit of the cuboid solenoid. The inner-layer solenoid is arranged inside the outer-layer solenoid; the closed inner-layer solenoid circuit generates a magnetic field to influence the outer-layer solenoid to generate a magnetic field which will then enable the inner-layer solenoid to make reciprocating movements axially. The closed inner-layer solenoid circuit generates a magnetic field to influence the cuboid solenoid electromagnetic device under the road to generate a magnetic field; the magnetic fields respectively generated by the cuboid solenoid and the inner-layer solenoid will generate electromagnetic gravitation through interactions, to impede the movement of the vehicle. The utility model can effectively increase the mechanical braking resistance and improve the safety of traffic movement.
Description
Technical field
The utility model is involved in auto trade and traffic and transportation system.
Background technology
Existing brake device for car is drum-type friction brake or disc type friction brake basically, this brake equipment obtains car when slowing down maximum resistance is wheel and ground-surface force of sliding friction, but, be generally the manipulative capability that guarantees vehicle, the normal automatic anti-lock device (ABS) that uses prevents wheel lockup, prevents that promptly wheel and road surface from producing cliding friction.Reasons such as at present, speed is fast because express highway is got on the car, and the drag time is long, traffic accident happens occasionally, and causes great personal casualty and property damage.Therefore, if can make vehicle when slowing down, obtain a bigger resistance, even vehicle is given the friction drag of vehicle tyre except that obtaining the road surface when slowing down, also make vehicle acquisition road surface impose on the electromagnetic resistance (producing) of car by the automobile electromagnetic brake equipment, vehicle was slowed down in the shorter time, even vehicle obtains bigger negative acceleration, shorten stopping distance.
Summary of the invention
Long in order to overcome the present automobile brake time, the problem that stopping distance is long, the utility model makes vehicle obtain additional friction one electromagnetic resistance except that friction drag in braking procedure, improves the negative acceleration in the car brakeing process, further improves the driving safety of vehicle.
The technical scheme that its technical matters that solves the utility model adopts is: mainly inhale principle mutually according to Law of Biot-Savart-Laplace, Faraday's electromagnetic induction law, magnetic field heteropole and Lenz law designs this device, double-deck screw actuator and corresponding circuit thereof are installed on vehicle (mainly being car) rear and front end chassis as shown in Figure 1, the double-deck screw actuator of rear and front end should be identical apart from ground-surface height, their size can change slightly according to the shape of car, but, had better not sacrifice solenoidal magnetic-field intensity.The solenoidal material of this bilayer should have sufficient intensity, in order to avoid damage, the internal layer screw actuator can move back and forth in outer screw actuator vertically.Designing double-deck solenoidal main purpose is: in the interaction process of electromagnetic force, make vehicle can be subjected to an inotropic action, play buffer action, avoid on-board crew to be subjected to intense impact.The electromagnetic field distribution of this bilayer spiral piping arrangement and circuit thereof are shown in Fig. 4 (a).Cuboid screw actuator calutron is installed under the road surface, and its related circuit c has open circuit and closed circuit two states.When car brakeing, start double-deck screw actuator calutron, the electromagnetic field of its generation will excite cuboid screw actuator calutron to generate an electromagnetic field, the pole orientation of the electromagnetic field of its generation is identical with the pole orientation of the electromagnetic field that double-deck screw actuator calutron produces, so, between vehicle and road surface, produce a mutual electromagnetic sucking action, make vehicle in the brake snub process, can be subjected to the electromagnetic attraction that the road surface imposes on vehicle, thereby increase the total drag that is subjected in the car brakeing process, vehicle can be braked faster, improve the driving safety of vehicle.
The cuboid screw actuator, its height can be determined according to the designing requirement of the number of turn, width basically can be identical in the width of vehicle-mounted double-deck screw actuator calutron, length can be determined according to the width average and the surface width of road of car body, the distance that is installed between the single cuboid screw actuator under the road surface should be suitable, but be difficult for excessive.Between the single cuboid screw actuator electromagnetic screening wall should be installed, avoid the phase mutual interference of electromagnetic field.The scheme drawing that vehicle is subjected to electromagnetic attraction as shown in Figure 9, the force analysis figure of vehicle is as shown in figure 10.
The size of this electromagnetic attaction application force changes with the horizontal tilt angle α of the size of internal layer screw actuator electromagnetic field, double-deck screw actuator calutron and the size of the speed of a motor vehicle.
Make this electromagnetic attraction enough big, at first should increase the magnetic-field intensity (or magnetic induction density B) of internal layer screw actuator electromagnetic field, and the intensity of current I among magnetic induction density B and the circuit a has following relation
B＝kμnI (1)
The coefficient of k wherein for changing with change in location, μ is the permeability of magnetic medium, n is the interior solenoidal number of turn.
Therefore, can be by increasing μ, n and I, or the size of regulating the three obtains satisfactory magnetic induction density B, for increasing μ, can add ferrite magnetic material in interior screw actuator.
For the road surface coil, according to Faraday's electromagnetic induction law, because
φ＝BS (3)
Wherein ε is the induced electric motive force of road surface coil, and t represents the time, and φ is a magnetic flow, and B is interior solenoidal magnetic induction density, and S is interior solenoidal sectional area.
Therefore, increase interior solenoidal sectional area S, can increase the induced electric motive force ε of road surface coil, so, can increase the intensity of current in the coil of road surface, strengthen the intensity of the electromagnetic field of its generation, to increase the sucking action between car and the road surface.
According to above technology, vehicle can be represented by following formula at the stressing conditions that uses automobile electromagnetic brake equipment glancing impact
F＝F
3+2F
1cosα (4)
F
3＝fN (5)
N＝G+2F
1sinα (6)
Wherein, F represents the total drag that is subjected in the car brakeing process, F
3The expression road surface is to the friction force of vehicle tyre, F
1The expression road surface is to the electromagnetic attraction of the double-deck screw actuator calutron of vehicle front, and α represents the angle of vehicle-mounted double-deck spiral piping arrangement outer end and horizontal direction, and f represents the coefficient of rolling friction between tire and the road surface, and N represents the pressure that car is subjected to, and G represents the gravity of car.
Obtain by formula 4,5,6
F＝fG+2F
1(fsinα+cosα) (7)
By formula 7 as seen, when α arrived a certain value, F can obtain maxim.
As seen from Figure 10, electromagnetic force not only makes car be subjected to an additional resistance 2F of horizontal direction after producing
1Cos α, and the pressure of car road pavement is increased, and then improve the friction force F between tire and road surface
3
The beneficial effects of the utility model are: vehicle is in braking procedure, as required, make vehicle obtain suitable negative acceleration by the automobile electromagnetic brake equipment, in the safety distance inside brake, further improve the driving safety of vehicle, simultaneously, a part of kinetic energy of vehicle in braking procedure can be converted into electric energy, the electric energy that stores can be used for the illumination of road illumination or highway nearby buildings.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 to Fig. 3 is the installation site figure of double-deck screw actuator calutron on vehicle, and wherein dash area is represented this device.
Fig. 1 is the installation site front elevation.
Fig. 2 is the installation site lateral plan.
Fig. 3 is the installation site birds-eye view.
Fig. 4 is that the electromagnetic field of vehicle-mounted double-deck screw actuator calutron and road surface calutron distributes and related circuit figure, and wherein (a) is that vehicle-mounted double-deck screw actuator calutron electromagnetic field distributes and related circuit figure; (b) be the electromagnetic field distribution and the related circuit figure of cuboid calutron under the road surface; Among the figure (a), 1 is circuit a, and 2 is circuit b, and 3 is optical transceiver, N
1, S
1The polarity of expression internal layer screw actuator electromagnetic field, N
2, S
2The polarity of representing outer screw actuator electromagnetic field; Among the figure (b), 4 is optical receiving set, and 5 is electric storage device, N
3, S
3The polarity of expression electromagnetic field.
Fig. 5 is vehicle interaction diagram of electromagnetic field between vehicle and the road surface in braking procedure, and wherein 6 is the road surface, and 7 is the cuboid calutron, and α represents the angle of vehicle-mounted double-deck spiral piping arrangement outer end and horizontal direction, N
1The magnetic pole of expression internal layer screw actuator electromagnetic field, N
3, S
3The polarity of expression cuboid calutron electromagnetic field.
Fig. 6 to Fig. 8 is the axonometric(al) projection of cuboid calutron.
Fig. 6 is a cuboid calutron front elevation.
Fig. 7 is a cuboid calutron lateral plan.
Fig. 8 is a cuboid calutron birds-eye view.
Fig. 9 is the stressed scheme drawing that vehicle is subjected to electromagnetic force, wherein F
1, F
2Represent that respectively the road surface magnet coil is to the double-deck solenoidal electromagnetic attraction (F of vehicle front and back ends
1≈ F
2), V represents velocity reversal.
Figure 10 is the force analysis figure in the car brakeing process, wherein F
1Implication with F among Fig. 5
1Implication, F
3The expression road surface is to the friction force of vehicle tyre, and G represents the gravity of car, and the α implication is the same.
The specific embodiment
When vehicle need slow down or glancing impact, by chaufeur switch on a, start vehicle-mounted double-deck screw actuator calutron (circuit a, circuit b excites inside and outside solenoidal electromagnetic field respectively, the intensity of interior screw actuator electromagnetic field can be controlled by the intensity of current among the circuit a), according to slowing down or brake request, regulate the double-deck screw actuator calutron of vehicle front and back ends along continuous straight runs 180 °-α of inclination and α (varying in size of α angle respectively, the electromagnetic force that vehicle is subjected to the road surface magnet coil is also different), the position of the vehicle-mounted double-deck screw actuator calutron after the adjusting is shown in Fig. 5 (a).Vehicle is when motion, the optical transceiver of double-deck screw actuator calutron sends optical signal and gives the cuboid screw actuator calutron that is installed under the road surface (at this moment, double-deck screw actuator calutron is sitting at the top of cuboid screw actuator calutron), then, the optical receiver demand working circuit c of cuboid screw actuator calutron (circuit c is C/LOOP at this moment), at this moment, the cuboid screw actuator calutron of the interior solenoidal electromagnetic field effect of vehicle-mounted double-deck screw actuator calutron under it, according to Faraday's electromagnetic induction law, cuboid screw actuator calutron under the vehicle-mounted double-deck screw actuator calutron with vehicle pass through be excited successively, produce induced electric motive force, follow faradic generation to produce induced field simultaneously (as required, electric energy in the magnet coil of road surface can partly store), because vehicle travels forward, therefore the opposite polarity directions of its pole orientation and vehicle-mounted internal layer screw actuator electromagnetic field (vehicle in the process of moving between vehicle and the road surface interaction diagram of electromagnetic field as shown in Figure 5), like this, travel forward with vehicle, the road surface will constantly impose on electromagnetic attraction of car, and the stressed scheme drawing of vehicle as shown in Figure 9.So, by the electromagnetic force mutual action between vehicle-mounted calutron and the road surface magnet coil, can make car when brake snub, the kinetic energy of vehicle is converted into electric energy by electromagnetic field; Also can make vehicle be subjected to bigger resistance at glancing impact, the resistance size sees that upward joint is analyzed.When vehicle need quicken again, vehicle-mounted double-deck screw actuator calutron closed (cut off a) gets final product, after the optical receiver of road surface below cuboid screw actuator calutron does not receive the optical signal that vehicle sends, also will disconnect its circuit in setting-up time, vehicle will no longer be subjected to electromagnetic resistance.
Claims (4)
1, a kind of automobile electromagnetic brake equipment comprises cuboid screw actuator calutron two parts under vehicle-mounted double-deck screw actuator calutron and the road surface, it is characterized in that:
Described vehicle-mounted double-deck screw actuator calutron comprises internal layer screw actuator and circuit and outer screw actuator and circuit thereof;
Cuboid screw actuator calutron comprises cuboid screw actuator and circuit thereof under the described road surface;
The internal layer screw actuator is installed in the outer screw actuator, produces magnetic field when the internal layer solenoid circuit is closed, responds to outer screw actuator generation magnetic field and makes internal layer screw actuator crank motion vertically;
Produce magnetic field when the internal layer solenoid circuit is closed, the cuboid screw actuator produces magnetic field under the induction road surface, and solenoidal magnetic field of cuboid and the solenoidal magnetic field of internal layer interaction produce electromagnetic attraction, hinder vehicle movement.
2, automobile electromagnetic brake equipment according to claim 1 is characterized in that comprising in the internal layer solenoid circuit power supply and optical transceiver.
3, automobile electromagnetic brake equipment according to claim 1 is characterized in that comprising optical receiver and electric storage device in the solenoidal circuit of the cuboid of installing under the road surface.
4, automobile electromagnetic brake equipment according to claim 1 is characterized in that vehicle-mounted double-deck screw actuator calutron is according to slowing down or brake request along continuous straight runs angle of inclination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520131832 CN200977907Y (en) | 2005-10-23 | 2005-10-23 | Automobile electromagnetic braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520131832 CN200977907Y (en) | 2005-10-23 | 2005-10-23 | Automobile electromagnetic braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200977907Y true CN200977907Y (en) | 2007-11-21 |
Family
ID=38978285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520131832 Expired - Fee Related CN200977907Y (en) | 2005-10-23 | 2005-10-23 | Automobile electromagnetic braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200977907Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106184148A (en) * | 2016-07-19 | 2016-12-07 | 电子科技大学 | Magnetic auxiliary vehicle |
| CN106314572A (en) * | 2016-08-02 | 2017-01-11 | 陈海川 | Inertia balance technology of urban public traffic vehicles in driving process |
| CN109263617A (en) * | 2018-11-07 | 2019-01-25 | 三峡大学 | A kind of speed reduction device for automobile based on electromagnetic induction repulsion |
| CN109556893A (en) * | 2018-11-20 | 2019-04-02 | 中国科学院力学研究所 | The method of enhancing magnetic damping braking for high-speed rain movable model type test platform |
| CN110758351A (en) * | 2019-10-31 | 2020-02-07 | 柯犇 | Road magnetic field auxiliary vehicle braking system and braking method |
-
2005
- 2005-10-23 CN CN 200520131832 patent/CN200977907Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106184148A (en) * | 2016-07-19 | 2016-12-07 | 电子科技大学 | Magnetic auxiliary vehicle |
| CN106314572A (en) * | 2016-08-02 | 2017-01-11 | 陈海川 | Inertia balance technology of urban public traffic vehicles in driving process |
| CN109263617A (en) * | 2018-11-07 | 2019-01-25 | 三峡大学 | A kind of speed reduction device for automobile based on electromagnetic induction repulsion |
| CN109556893A (en) * | 2018-11-20 | 2019-04-02 | 中国科学院力学研究所 | The method of enhancing magnetic damping braking for high-speed rain movable model type test platform |
| CN109556893B (en) * | 2018-11-20 | 2020-04-21 | 中国科学院力学研究所 | Method for enhancing magnetic damping brake of high-speed train dynamic model test platform |
| CN110758351A (en) * | 2019-10-31 | 2020-02-07 | 柯犇 | Road magnetic field auxiliary vehicle braking system and braking method |
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|---|---|---|---|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Cui Fangming Document name: Correction notice |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071121 Termination date: 20091123 |